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unvented cylinder

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  1. D

    New house renovation: boiler and unvented cylinder advice

    Firstly this a great forum, this is my first post but I been an observer/reader for a while! OK so back to questions at hand. The house: I bought a new house around 1970s build 4 bedrooms full refurb. New radiators and pipework. Plastic pipe under the floor leading to copper coming out of...
    • Duality
    • Thread
    • boiler cylinder house unvented unvented cylinder
    • Replies: 11
    • Forum: Boilers
  2. L

    Unvented cylinder piping

    Hi guys Looking for some advise on piping a 500l tempest unvented cylinder. Can the whole system and cylinder be piped using 22mm apart from the pressure relief pipe work?
  3. J

    Hot water booster for my unvented cylinder doesnt seem to work after about 5 pm?

    Hi, I have an OSO direct 20 RD Unvented water heater, with 2 elements; the bottom one heats overnight using economy 7, and the top is a booster to be manually switched on when a bit of extra hot water is needed. The problem is that after about 5 PM the booster element does not come on when I...
  4. O

    Unvented Cylinder

    Hi all hope you have all had a good Christmas and new year. I have a customer with water running through the tundish. The PRV has been replaced but the water still runs through. The water is not hot so I don't believe its from the TPRV. The cylinder has a expansion vessel screwed in to the top...
  5. S

    unvented cylinder hot water pressure

    i hope someone can give me an advise on the issue that I'm currently facing, my property is a new build and its just 3 years old, the house came fitted with megaflow eco solar 300si, its an unvented cylinder which works with both boiler and solar panel. The issue that I'm facing is the hot...
    • shai
    • Thread
    • cylinder hot water pressure unvented unvented cylinder water
    • Replies: 5
    • Forum: Bathroom Advice
  6. U

    direct unvented cylinder pressure

    Hi guys. I'm looking for some advice.. i'm thinking of installing a direct unvented cylinder in my partners hair salon to feed two backwash basins, we have no gas in the premises hence the reason for it being direct using immersiors. The cold mains enters the building in 15mm and just over...
  7. Riley

    Unvented cylinder sizing

    Have been asked by a customer to fit in unvented cylinder in a small guest annex. For two people maximum Cylinder will serve bath shower basin and kitchen sink Customer has highlighted to me however that the bath is colossal approximately 350 L of water He also says that the likelihood...
  8. L

    Unvented Cylinder

    Hi, quick question. I am installing a Mira digital mixer valve (high pressure version). i have a single hot and cold pipe run from my mains cold water and unvented cylinder up to my loft room. Can i run all of my bathroom water from this run (toilet, bidet, his and hers sinks, bath and...
  9. Scott_D

    Unvented cylinder service £?

    How much do you charge for a service of an unvented cylinder? Either ones you have fitted or new builds that need it for the NHBC warranty:hurray:
  10. K

    Wifi Controller with Unvented Cylinder system

    Hi guys and gals My wife and I have recently bought a new house and we will be changing the heating system. Currently an open system with hot and cold tanks. We are planning to go for an unvented cylinder system while moving the boiler location. The main thing I wanted to ask about is the...
  11. E

    can someone please clear up my pressure and flow issues with unvented cylinder?

    Hi all, this relates to a previous problem ive posted here before. Without going into too much detail, I have an unvented cyclinder boiler (ideal istor) that up until now had been delivering measly flow rates of 8LPM max and if I ever attempted to run 2 showers at once one of them would become...
  12. U

    can anyone clear up my pressure/flow issues on an unvented cylinder?

    Hi all, this relates to a previous problem ive posted here before. Without going into too much detail, I have an unvented cyclinder boiler (ideal istor) that up until now had been delivering measly flow rates of 8LPM max and if I ever attempted to run 2 showers at once one of them would become...
  13. U

    Advice on unvented cylinder into open vented system.

    Hi guys I'm after some advice in regards to a cylinder I have been asked to install for a customer. I have been asked to install the below cylinder to an open vented system (gravity fed) Range Tribune HE Solar TT180PT4 180l Unvented Indirect Pre-Plumbed Solar Twin-Coil Twin-Zone...
  14. F

    unvented cylinder

    Hi. I have a customer who wants me to fit an unvented cylinder in the atic of his offfice.... problem being its imported from poland and doesnt seem to be up to standard. It is directly heated by electric as far as I can tell from the manual which is very limited with information it has an...
  15. R

    Engineer needed to install system boiler + unvented cylinder - Hertfordshire

    Hi, I'm looking to replace my vented system with a Vaillant unvented set up. The work will require installation of the following components: - Vaillant Ecotec 630 (ERP) system boiler with standard horizontal flue kit - Vaillant Unistor 210 unvented cylinder - Vaillant VR 66 control centre -...
    • rjmeer
    • Thread
    • boiler cylinder engineer install system unvented unvented cylinder
    • Replies: 5
    • Forum: Boilers
  16. R

    Unvented cylinder notification.

    How do we notify building control? I tried on Gas Safe notifications but there is nowhere on the notifications menu for just a direct unvented cylinder (not gas).
  17. A

    Unvented cylinder (again) customer thinks pressure is too low.

    Got called to a job where the customer said they think the water pressure from their unvented has got worse recently. No discharge from Tundish, outlet of cylinder is all in 22mm that i can see. The wife who i spoke to said she couldn't notice a change and was ok with it but her husband who...
  18. R

    Sponsored thread - FREE 210 or 250 Unvented cylinder with Baxi system boilers

    Blinkin' flip! as Masood would say. Yep, its true. Buy an 18kw Baxi MainEco system boiler for £549 plus VAT and we will give you, absolutely free, a brand spanking new RM Stelflow 210 indirect unvented cylinder, worth £399 + VAT. Buy a 24kw Baxi MainEco system boiler for £599 plus VAT and we...
    • Ray Stafford
    • Thread
    • baxi boilers cylinder system unvented unvented cylinder
    • Replies: 19
    • Forum: Boilers
  19. A

    Changing a combi valve on unvented cylinder

    Sorry for the stupid question but i have to change a combi valve on an unvented cylinder tomorrow, i havent been to the job but the part has been ordered by another engineer. I'm not overly clued up on fault finding but have fitted a few. Just want to confirm a few things. 1. Isolate mains...
  20. G

    Tandem unvented cylinder configuration

    Any thoughts on this installation I have been asked to look at? 2 direct unvented HW cylinders, both have 2 immersion heaters, one has solar heated coil in addition. Cylinder with solar is fed by standard means of mains water through combination valve with expansion vessel. Outlet goes to the...
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